﻿<h4>Identifier</h4>
<br>
<p>The identifier have unique titles described by fully qualified names that indicate a logical hierarchy.<br>The identifier that has no parameters. Parentheses are added when necessary to separate:</p>
<p>There is a hierarchy of keywords in that some keywords are always followed by others.</p>
<pre><code class="lang-shell">sel.path
sel.path().ext</code></pre>
